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Zack Galbreath authored
This class allows us to display a legend for categorical data. vtkHeatmapItem has been updated to use this new class. Other changes made in this commit include: * Improved appearance and behavior when a legend has been scaled by a vtkContextTransform * An option to draw a border around the vtkColorLegend. * vtkColorLegend now obeys vertical and horizontal alignment unless SetPosition() was called. Change-Id: I6c7c782c6f3da78103b893c43d068e81e9ef78a7
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